(19)
(11) EP 0 977 420 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
31.01.2001 Bulletin 2001/05

(43) Date of publication A2:
02.02.2000 Bulletin 2000/05

(21) Application number: 99305873.4

(22) Date of filing: 23.07.1999
(51) International Patent Classification (IPC)7H04N 1/00
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 31.07.1998 US 127654

(71) Applicant: Hewlett-Packard Company
Palo Alto, California 94304-1112 (US)

(72) Inventor:
  • Dowe, Julie T.
    Fort Collins, Colorado 80525 (US)

(74) Representative: Jehan, Robert et al
Williams, Powell & Associates, 4 St Paul's Churchyard
London EC4M 8AY
London EC4M 8AY (GB)

   


(54) A method and apparatus for transforming an image into an electronic signal


(57) A reflective surface (120, 202, 302) is provided behind a document (100, 208, 308) to be scanned on an optical image scanner, copier, facsimile machine or similar device. Preferably, the reflective surface (120, 202, 302) has a reflectance less than 90% with a preferred reflectance range of 60% to 75%. this reflective surface (120, 202, 302) is substantially integral with the scanner, copier or facsimile lid (200, 300) surface and substantially reduces image bleed-through while resulting in an acceptable level of color shift and an acceptable loss of dynamic range relative to a white surface. In a second embodiment, the reflective surface (120, 202, 302) is interchangeable by the end user in order to optimize the reflectance of the reflective surface (120, 202, 302) for any given document (100, 208, 308) to be scanned, copied, or faxed.







Search report